Fourths to george thomas mclauthlin



(No Model.)

J; NAYL0R,-J1-. UENTRIPUGAL WATER PUBIPIER.

No. 529,663. Patented Nov; 20, 1894.

WITNESSES INVENTOI? m2 norms Pam's no. womu'ma. wAsMmumm 0. cv

UNITED STATES PATENT Ei rcE.

JAMES NAYLOR, JR, oF' BOSTON, MASSACHUSETTS, ASSIGNOR or THREE- FOURTHS TO GEORGE THOMAS MOLAUTHLIN, or SAME PLACE.

CENTRIFUGAL WATER-'PURIFIER.

SPECIFICATION forming part of Letters Patent No. 529.663, dated November 20, 1894. Application filed April 4, 1893. $erial No. 469.079; (1T0 model.)

To ctZZ whom it may concern.-

Be it known that I, JAMES NAYLOR, J r., a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and usefulImprovement in Water-Purifiers, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to a machine whereby impurities of different specific gravities in water, are removed therefrom in succession; at different parts thereof.

It has for its object the purification of water for ordinary domestic uses, and other purposes when a high standard of excellence is required.

The method consists of the following steps: first, running the water into a closed chamber and subjectingit to the resulqs of centrifugal force, the water being thus freed of all 'matter held in suspension whose specific gravity is greater than that of itself; second, overflowing the stream into a thin undivided sheet and spreading it over the largest possible area for aeration; the air taking up any light or volatile taint or impurity; third, retaining the discharged water after aeration and subjecting it again and more intensely to centrifugal force; fourth, skimming the Water at a point further distant from the axis than any point contained Within the chamber of the bowl, so as to get a maximum effect within the skimmer of the admixture of air, whereby the wateris most thoroughly aerated and discharged.

It also consists of points inconstruction whereby a much stronger bowl is made, and

a consequent higher speed can be attained with the present factor of safety; also of the general construction whereby the successive steps in the treatment of the water are attained.

In the drawings, Figure 1 is a side elevation of the machine, a part being shown in section; Fig. 2, a full sized detail view, and Fig. 3 a top plan view with the cover and inlet pipe shown in Fig. 1 removed.

A A represents the frame of the machine; B B are upper and lower bearings in which runs the arbor 0, upon which is mounted the bowl D.

E is a pulley attached to the arbor, to which power is applied.

The bowl D is of peculiar construction,the intent being to make it stronger so as to run at a higher speed than has been done heretofore, for it is only by this accomplishment that good results can be attained. The weight of the arbor and bowl is supported by a hardened steel step c. Restingupon the top of arbor O is the center piece F, which is held at its lower end to the arbor O by means of the rubber spring G. This allowsof a limited oscillation from theceuter of the hemisphere at the upper end. Water-ways are cut in the center piece F, two being shown at ff, Fig. Land eight in ,Fig. 3.

' H is the core-piece, and into same the center piece is well fitted; so that a receiving cup I, water-waysff and distributing chamber J are made. (See Fig. 1;). Water-ways hh are drilled through at the lowest part of the chamber J. Ashoulder h formed on the core-piece H serves to support the bowl proper. a flanged disk d". forged and turned and can be thoroughly worked and tested before the final putting together. This is of the utmost impgrtance and for suiting this requirement, this con- The bowl D is made of a shell d, and' Each piece is separately structiou constitutes a feature of the inven and then as in the preceding case the whole of the exterior surface of the disk is finished,

without being re-chucked. The shape or form of the shell 01' may be termed as semi-spherical; the object and intent being to avoid the usual square corner in the lower part of most other bowls and thus strengthen the part that would otherwise be Weak. This form is also more cheaply made because it can be pressed from a circular plate of rolled steel of the highest tensile strength. The shell d and disk (1 are now screwed together and sol- IOO dered. The upper external surface of the. bowl has a radial flare, being lower as the center is approached or higher toward the periphery. An annular gutter 11 is cut into the bore of the disk, as also the water-ways 'i' and the remaining surface makes the close fit to the core piece H. A gutter is out into the disk at K, said gutter being diametrically or circumferentially larger than the interior of the bowl D. The skimmer L is of the ordinary kind and projects within the gutter K to a point farther away from the axis of the arbor than anypart of the interior of the bowl.

M is the inlet pipe to the receiving cup I from any common water supply.

N is the discharge from the skimmer L, from which the pure water may be conducted to any proper receptacle.

0 0 are two blades secured to the piece d of the bowl D to force the rotation of the water with the bowl. P is a collar to hold the rubber cushion Gin its position. The center piece F is fitted into the core piece H and the whole so arranged that the center of oscillation is level with or in the same plane as the point of the skimmer L.

Q is a cover fitted as close as possible to the revolving bowl, held to the frame and pipe connections by any devised means, into which a stream of pure air is supplied, entering at R and leaving at R.

It should be observed that in operation the separating chamber of the bowl is entirely filled with water,which having to pass through the contracted annular opening from the gut- .terrl causes a consequent filling (more or less) of the openings h h, effectually preventing the access of any air thereto. This complete filling of the separating chamber renders the bowl and the contained water, so far as their revolutions are concerned, as one solid, immovable mass which is always in perfect balance. The extraordinary distance at which the skimmer is set from the center, the rate of speed of the water entering the skimmer, the vibrations of the frame and the oscillations of the bowl are all causes of a general disturbance of the water contained in the gut ter K. It would be impossible with the skimtner set, even to attain one-eighth the required speed withoutthis actual fillingof the separating chamber, forif the chamber contained any air, the load of waterin the chamber would surely be disturbed in common with the water in the gutter and equilibrium prevented. The greater weight of the bowl and the water contained in its separatingchamber being always in positive balance, easily controls the lesser weight of the water contained in the gutter K which is in a state of constant disturbance as heretofore explained. Owing to the high rate of speed the skimmer appears constant, but in reality it is always taking more water at one point of the revolution than it is at another.

The operation is as follows: \Vater from the supply pipe M enters the cup I, flows through the waterways f f into the distributing chamber J, through the openings h h into the closed chamber of the bowl and into the waterways i, and gutter 11, whence it overflows in a thin undivided sheet upon the upper and exterior surface of the bowl and is caught by the gutter K from which it is removed by the skimmer and. discharged. Heavy impurities are removed by occasional cleaning of the bowl. Volatile impurities are carried off by the air currents.

I am aware that water is in part purified by filtration in a centrifugal filter; and also that attempts have been made to purify fermented liquids in a centrifugal machine by contact with sterilized air. Such I do not in anywise claim, but

Having described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. In a centrifugal water purifier the combination with a mounted arbor and bowl, said bowl composed of a semi-spherical shell and a flanged disk; of the core-piece H fitted to said shell and disk and provided with a shoulder h to support the same; substantially as shown and described.

2. In a centrifugal water purifier the combination with the supported core-piece H provided with a shoulder 71. and the shell cl fitted thereto and resting thereon; of the disk cl" provided with the annular gutter t'and waterways t" and fitted to said core-piece as shown and described.

3. In a centrifugal water purifier the disk cl" provided with a gutter K above its upper surface which is diametrically larger than any internal diameter of the bowl, and an internally screw threaded flange below its lower surface, the semi-spherical shell d having a corresponding screw thread and means of support to the arbor, and said arbor; in combination with the skimmer secured to the frame and means for inflow as herein shown and described.

4:. In a centrifugal water purifier the bowl D provided with the blades 0, the core-piece H having openings h to said bowl; in combination with the center-piece F having waterwaysfand said center-piece mounted upon the arbor as herein set forth.

5. In a centrifugal water purifier the combination witha mounted bowl and arbor, said bowl composed of a semi-spherical shell provided with external screw threads upon its outermost periphery, and a flanged disk provided with corresponding internal screw threads, the core-piece H fitted thereto and supporting same; of means forinflow and discharge as herein set forth.

6. In a centrifugal machine the combination with the arbor mounted in its bearings and the bowl; said bowl being composed of the shell cl and the flanged disk d" of the core-piece H made to fit said bowl at its upper and lower extremities, and the centerpiece F to likewise fit said core-piece as constituting the means of support of the bowl to the arbor as herein set forth.

7. In a centrifugal water purifier the combination with a mounted arbor and bowl, said bowl provided with the gutter K and a separating chamber capable of carrying an immovable body of water therein contained, said gutter being diametrically larger than said separating chamber; of means for inflow to said chamber and discharge from said gutter as herein shown and described.

8. In a centrifugal machine the combination with the cover of the bowl d", an annular gutter i and water-ways '11, formed by cutting into its inner face and in close contact with the core-piece H; of said core-piece as constituting the means of limited annular discharge from the closed chamber of the bowl as herein set forth.

9. In a centrifugal water purifier the combination with a mounted and closed bowl provided with gutters 'i and K on its outer upper surface; of a stationary close fitting cover provided with inlet and outlet openings for air blast for the purpose of exposing the thin discharging film of water to the influence of the blast as herein set forth.

10. In a centrifugal machine, the combination with a mounted arbor having a semispherical seat for the bowl; of said bowl mounted thereon and provided with the gutterK and a closed separating chamber; said chamber being suspended below said seat and said gutter being in the same horizontal plane with said seat and with the skimmer L as herein set forth.

1 In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 28th day of December, A. D. 1891.

JAMES NAYLOR, J R. Witnesses:

A. KENNY, M. W. E. BRUNKHORST. 

